Am I right this is Tex Beneke playing 'Mortimer'? If this is 1944 the Modernaires had left the Glenn Miller band and were touring the US. Good clip.

4 acts here.. not really soundies, more like a stage show.

1) A dancing gymnastics troupe. Not bad, but hardly anything you've seen before.
2) A singing group, 4 men and a woman, 3 of them get goofy solos. Song is, yes, about which doofus the girl gets.
3) Pansy (2 guys in a horse costume) performs for us. What makes this footage hilarious is that I've JUST recently seen this for the first time a few days ago. The act is pretty good, very good coordination.
Finally Reg Kilhoe and his Miramba queens make a return visit, cleaner print this time, and the reversing fixed. Bassist still possessed as ever.
Pretty good collection. I was entertained.

IMDB has this listed as being from 1944:

http://www.imdb.com/title/tt0245197/

Actress Virginia Mayo (took her stage name from Andy & Florence Mayo) did the routine with Pansy the Horse in earlier years, but this short has Connie Haas as the girl.